Finding the Fourth Proportional to 85,707,185,972.28, 128,475,860,070.11 and 40,246,515,056.00
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Solution
The fourth proportional to 85,707,185,972.28, 128,475,860,070.11 and 40,246,515,056.00 is: 60,329,896,239.00
Step by Step Solution
- Step 1: Write the proportion equation
85,707,185,972.28 : 128,475,860,070.11 = 40,246,515,056.00 : x - Step 2: Convert to fraction form
85,707,185,972.28/128,475,860,070.11 = 40,246,515,056.00/x - Step 3: Cross multiply
85,707,185,972.28x = 128,475,860,070.11 × 40,246,515,056.00 - Step 4: Simplify right side
85,707,185,972.28x = 5,170,705,636,643,974,414,336 - Step 5: Solve for x
x = 5,170,705,636,643,974,414,336/85,707,185,972.28 - Step 6: Final answer
x = 60,329,896,239.00
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.